Journal of Baku Engineering University is an open-access journal that publishes original, high-quality research papers in all fields of mathematics and computer science. Special attention is paid to the following fields: real and complex analysis, harmonic analysis, functional analysis, approximation theory, differential equations, calculus of variations and optimal control, differential geometry, algebra, number theory, probability theory and mathematical statistics, mathematical modeling, mathematical physics and information technologies. JBEU welcomes papers that establish interesting and important new results or solve significant problems. All papers are refereed for correctness and suitability for publication. The journal is published in both print and online versions. The online version is available on an Open Access basis at https://mcs.beu.edu.az